Pearl-button machine



P. P. DusHA AND A. FEYK.

PEARL BUTTON MACHINE.

APPLICATION FILED OCT. I7. I9I9.

Patented June 8 1920..

2 SHEETS-SHEET l.

@fig/MURS ATOHNE S P. F. DUSHA AND A. FEYK.

PEARL BUTTON MACHINE.

APPLICATION FILED OCT. I7. 1919.

' Patented .Ilma 8, 1920.

2 SHEETS-SHEET 2- Ano/mns eric.

PAUL F. DUSHA, OF NEW YORK, AND ANTON FEYK, OF BOMEHIA, NEW YORK,

ASSIGNORS T0 HOLUB-IDUSI-IA COMPANY, OF NEW YORK, N. Y., A CORPORA-TION.

PEARL-BUTTON MACHINE.

specification bf Letters Patent.

Patented J une 8, 1920.

To all whom t may concern.'

Be it known that we, PAUL F.y Dosi-ni and ANTON FEYK, citizens of theUnited States, and residents, respectively, of the city of New York,borough of Manhattan, in the county and State of `New York, and.Boheinia, in the county of Suffolk and State of New York, have inventeda new and lmproved Pearl-Button Machine, of which the following is afull, clear, and exact de- Scription.

This invention relates to pearl button machines and has particular`reference to machines for making that type of buttons known as shankbuttons, and the present invention constitutes an improvement on theinvention for which Letters Patent of the United States, No. 1,182,660were issued on our application to Holub-Dusha Co., of New York, on the9th day of May, 1916.

Among the objects of the present invention are first to provide a meansfor steadying or holding the drill near its point and irrespective ofits length from the drill spindle so as to prevent the bending, breakingor buckling of the drill; secondly to reduce to a minimum the likelihoodof breaking or splitting of the buttons while being drilled; thirdly toprovide improved facilities for easily and quickly adjusting the buttonholding chuck with respect to the path of movement of the series ofdrills around the general axis of the machine, and fourthly theprovision of ej ecting means for positively and mechanically startingthe button after being drilled from `the holding chuck so that thepneumatic appliances, or their equivalent, relied upon for receiving anddelivering the button from the drill press will be sure to operatesatisfactorily.

With the foregoing and other objects in view the invention consists inthe arrangement and combination of parts hereinafter described andclaimed, and while the invention is not restricted to the exact detailsof construction disclosed or suggested herein, still for the purpose ofillustrating a practical embodiment thereof reference is had to theaccompanying drawings, in which like reference characters designate thesame parts in the several views, and in which- Figure 1 is a verticalcentral sectional yview of one of our improved button holding chucks andparts immediately associated therewith, the section being on a planesubstantially radial with respect to the axis of the machine.

Fig. 2 is a front elevation of the same, but with parts in verticalsection substantially in a plane tangent to the path of movement of thedrills around the aXis of the entire machine.

Fig. 3 is a view somewhat similar to Fig. 1 but indicating the action ofthe button ejector' after the button has been drilled.

F ig. 4: is an enlarged detail view of the drill guide and buttonholder.

Fig. 5 is a front elevation of the saine,

parts being in section on the line 5--5 of Fig. 1.

Fig. 6 is an enlarged vertical sectional view of the drill guide andbutton holder.

Fig. 7 is an outside elevation of the same as it would appear lookingtoward the right in Fig. 6; and

Fig. 8 is a lower end or plan view of the same.

Referring now more specifically to the drawings we show at 10 a drillspindle having a chuck 11 for holding a drill 12 of any suitable caliberor length, the same usually and preferably being relatively small indiameter and of any convenient length whereby a single drill may be usedfor a long time before requiring to be renewed.

A button B having a shank b is shownV held in a chuck 13 having aspindle 14 of tubular form. In the drilling of a hole in the shank of abutton of this type it is desirable that the hole be drilled as nearlyas possible to the under or back face of the button, and it is to benoted also that the axis of the drill and hole formed thereby shouldcoincide with the aXis of the chuck spindle. Consequently the said backface of the button lies in a plane substantially tangent to thegeometric cylinder described by the drill in its revolution around theaxis of the machine, it being understood that the structure of Fig. 1,for example, is but one unit of a machine involving a large number ofsuch units arranged so that the drills all revolve in the same patharound said machine aXis, as shown for instance in Letters Patent of theUnited States No. 1,206,518, issued at our request to Holub-Dusha Co. onthe 28th day of November-1916- In view of the length and flexibility of16 of a site corresponding to the diameter' of the drill to operatetherethrough while the ,upper'end of the bore 16 is counterbored at 162Land provided with a taper 16.b where the two bores merge into eachother. This taper insures the direction of the drill point down throughthe hole 16 when being brought into operating positionflhe lower end ofthe guide is notched away at 17 to a plane tangent to the side of thebore 16 for the accommodation of the rim of the button and thus.providing for the action of the drill closeV to the back face ofthe'button.Y f Opposite the notch 17 the lower end of the. guide isbeveled off at 18 yforming a sort of' chisel point 19 at the Vlower endin the plane Yof the drill bore irland this chisel edge is undercut inarc-shape at 20 for direct contact, with the upper Vside of the shankbeing drilled. Theupper or crest portion ofthe undercut 2O is Y notchedout at 21 to provide proper clearance for the chips. It will beunderstood from the foregoing description that `the chisel end 19, orits undercut 2O will bear directly upon the button shank and hold thebutton steady while the guide body as a whole constitutes a steadyingdevice for theend of the drill. Hence it. will be appreciated that thedrill may be. of any consideralile'length between the guide 15 and thechuck 11. The guide, serving to holdthe drill from bending or buckling7prevents the button shank from breaking or splitting.

As above premised the plane of the button B in the operation of ourmachines should be substantially tangent to vthe geometric cylinderdescribed by the drill in its revolu- V tion around'4 the axis of themachine, and

therefore it is important that the adjustability of the chuck 13 aroundthe axis of its spindle be made as easy and convenient as possible, andwhen once properly adjusted with .respect to the tangent aforesaid thatit be held iirmly from rotation around the axis of the spindle. Toaccomplish these results we providey a thimble V22 through which thelower end portion of the spindle 141 projects and against which a nut 23bears7 the nut being threaded upon said spindle extension.

- A lug 24E is fitted in the thimble and projects into a slot 25 formedin the lower end of the chuck holder26 and so the thimble is held fromrotation in the yframe of the machine but is left free for verticalmove`ment .with the chuck for inserting or removchuck holder is adapted tobe lowered for loosening the chuck, by means of a cam 26a beneath whicha projection 26h from the holder rides during the revolution of thechucks7 as aforesaid. Upon the loosening of the nut 23 the chuck 13 maybe adjusted freely around its axis and upon the tightening ofV the nutagain such adjustment is made positive and secure.

In the usual practice of button making or drilling machines the buttonsafter being drilled are removed or delivered from Y from the chucks soas to brin@ Vthem into position to be caught by the pneumaticdeliverymeans. To this Ven d we Vprovide* an ejector27 comprisingastraight bar or Va round rod located within the spindle 14 andmovablelongitudinally thereof toward and from the button. As in theprevious pat-V ent above specified there is provided a V.-

shaped button seat 28 upon or within which the shank of the button isdirectly sup ported and which serves to center the button in onedirection.. rllhe face or body portion of the button projects alongsideof the button seat 28. The active end of the ejector 2'? is notchedoutat 29 so as to bring the extended finger portion 30 thereof in normalposition at one side of the button seat 28 and just below the peripheryof the face of the button as shown in Figs. 1 and 2.

At the lower end of the notch 29 is provided a shoulder 31which inabutting against the bottom of the button seat will limit the upwardthrow of the ejector. Any suitger 32 housedY in cam operated mechanism4beneath the spindle Vholding devices and at the proper time the spindlechuck is lloosened to release the button and several parts ofthemechanism are so operated relatively to one another as to cause theplunger 32 toenter the lower extension porn tion of the spindle andforce the ejector A27 upward so that the removal of the butrable meansmay be provided to actuate the ejector 27 when the button is to bedelivered` as in Fig. 3. To this end we provide a plunp tons bypneumatic or other means will be positively assured. Y We claim:

1. In a machine for drilling shank buttons, the combination with adrill, means to Vrotate the drill. around its aXis,-and means to supporta button lwith the shank in saidV axis and with the spot to be drilledVclose to located between the button and the drill the plane of the backface of the button, of a t A Y device constituting a combined buttonshank holder and drill guide, said device e being holder and having anundercut chisel edge to engage the button shank on opposite sides ofsaid spot.

2. In a pearl button machine, the combination of a button holding chuckhaving a button seat for supporting and centering the button shank,means providing for the adjustment of the chuck around its axis toproperly position the button With respect to the path of movement of thechuck around the axis of the machine, means to permit the necessaryvertical movements of the chuck for grasping or releasing a buttonWithout interfering with the adjustment thereof aforesaid, and means todrill a hole through the button shank.

3. In a pearl button machine, the combination of a chuck having a buttonshank holding seat, means to control the vertical movements of the chuckfor gripping and releasing the buttonheld upon the seat, and meansproviding for the adjustment of the chuck around its axis and tomaintain such adjustment irrespective of the vertical movementaforesaid.

and releasing the button independently ofV the aforesaid adjustmentmeans, and means acting upward through the chuck to eject the buttonfrom its seat after being drilled.

5. In a pearl button machine, the combination of a button holding chuckhaving a tubular spindle, means to Yreciprocate the chuck for causingthe same to grip or release the button, means to prevent rotation of thechuck and spindle irrespective of the reciprocation thereof, and abutton ejecting member located in the spindle and movable longitudinallythereof, substantially as set forth.

6. ln a button machine, the combination of a chuck having a tubularspindle, means to reciprocate the chuck and spindle to cause the same togrip or release a button, means to prevent rotation of the chuck aroundthe axis of the spindle, and plunger means acting longitudinally throughthe spindle to positively eject the button from the chuck after beingdrilled.

7. In a machine for drilling the holes in shank buttons, the combinationof a chuck to receive and hold a button edgewise, said chuck having aseat for supporting and centering the button shank, an ejector movableupward along the axis of the chuck to positively eject the button afterbeing drilled, said ejector being notched out at one side of its activeend to accommodate the button seat and provide a iingerat one side ofthe seat for action against the periphery of the button, and means tooperate the ejector.

PAUL F. DUSHA. ANTON FEYK.

